Add logging which could help indicate why Discovering Python Interpreters... never finishes

src/client/pythonEnvironments/base/locators/composite/envsReducer.ts

@@ -129,6 +129,7 @@ function checkIfFinishedAndNotify(
     if (state.done && state.pending === 0) {
         didUpdate.fire({ stage: ProgressReportStage.discoveryFinished });
         didUpdate.dispose();
+        traceVerbose(`Finished with environment reducer`);
     }
 }
 

src/client/pythonEnvironments/base/locators/composite/envsResolver.ts

@@ -174,6 +174,7 @@ function checkIfFinishedAndNotify(
     if (state.done && state.pending === 0) {
         didUpdate.fire({ stage: ProgressReportStage.discoveryFinished });
         didUpdate.dispose();
+        traceVerbose(`Finished with environment resolver`);
     }
 }
 

src/client/pythonEnvironments/base/locators/lowLevel/activestateLocator.ts → src/client/pythonEnvironments/base/locators/lowLevel/activeStateLocator.ts

@@ -40,5 +40,6 @@ export class ActiveStateLocator extends LazyResourceBasedLocator {
                 }
             }
         }
+        traceVerbose(`Finished searching for active state environments`);
     }
 }

src/client/pythonEnvironments/base/locators/lowLevel/condaLocator.ts

@@ -38,5 +38,6 @@ export class CondaEnvironmentLocator extends FSWatchingLocator {
                 traceError(`Failed to process conda env: ${JSON.stringify(env)}`, ex);
             }
         }
+        traceVerbose(`Finished searching for conda environments`);
     }
 }

src/client/pythonEnvironments/base/locators/lowLevel/customVirtualEnvLocator.ts

@@ -132,6 +132,7 @@ export class CustomVirtualEnvironmentLocator extends FSWatchingLocator {
             });
 
             yield* iterable(chain(envGenerators));
+            traceVerbose(`Finished searching for custom virtual envs`);
         }
 
         return iterator();

src/client/pythonEnvironments/base/locators/lowLevel/globalVirtualEnvronmentLocator.ts

@@ -134,6 +134,7 @@ export class GlobalVirtualEnvironmentLocator extends FSWatchingLocator {
             });
 
             yield* iterable(chain(envGenerators));
+            traceVerbose(`Finished searching for global virtual envs`);
         }
 
         return iterator();

src/client/pythonEnvironments/base/locators/lowLevel/microsoftStoreLocator.ts

@@ -12,6 +12,7 @@ import {
     isStorePythonInstalled,
     getMicrosoftStoreAppsRoot,
 } from '../../../common/environmentManagers/microsoftStoreEnv';
+import { traceVerbose } from '../../../../logging';
 
 /**
  * This is a glob pattern which matches following file names:
@@ -91,6 +92,7 @@ export class MicrosoftStoreLocator extends FSWatchingLocator {
                 kind,
                 executablePath,
             }));
+            traceVerbose(`Finished searching for windows store envs`);
         };
         return iterator(this.kind);
     }

src/client/pythonEnvironments/base/locators/lowLevel/poetryLocator.ts

@@ -70,6 +70,7 @@ export class PoetryLocator extends LazyResourceBasedLocator {
             });
 
             yield* iterable(chain(envGenerators));
+            traceVerbose(`Finished searching for poetry envs`);
         }
 
         return iterator(this.root);

src/client/pythonEnvironments/base/locators/lowLevel/posixKnownPathsLocator.ts

@@ -8,8 +8,8 @@ import { BasicEnvInfo, IPythonEnvsIterator, Locator } from '../../locator';
 import { commonPosixBinPaths, getPythonBinFromPosixPaths } from '../../../common/posixUtils';
 import { isPyenvShimDir } from '../../../common/environmentManagers/pyenv';
 import { getOSType, OSType } from '../../../../common/utils/platform';
-import { isMacDefaultPythonPath } from './macDefaultLocator';
-import { traceError } from '../../../../logging';
+import { isMacDefaultPythonPath } from '../../../common/environmentManagers/macDefault';
+import { traceError, traceVerbose } from '../../../../logging';
 
 export class PosixKnownPathsLocator extends Locator<BasicEnvInfo> {
     public readonly providerId = 'posixKnownPaths';
@@ -44,6 +44,7 @@ export class PosixKnownPathsLocator extends Locator<BasicEnvInfo> {
                     traceError(`Failed to process environment: ${bin}`, ex);
                 }
             }
+            traceVerbose('Finished searching for interpreters in posix paths locator');
         };
         return iterator(this.kind);
     }

src/client/pythonEnvironments/base/locators/lowLevel/pyenvLocator.ts

@@ -7,7 +7,7 @@ import { FSWatchingLocator } from './fsWatchingLocator';
 import { getInterpreterPathFromDir } from '../../../common/commonUtils';
 import { getSubDirs } from '../../../common/externalDependencies';
 import { getPyenvVersionsDir } from '../../../common/environmentManagers/pyenv';
-import { traceError } from '../../../../logging';
+import { traceError, traceVerbose } from '../../../../logging';
 
 /**
  * Gets all the pyenv environments.
@@ -33,6 +33,7 @@ async function* getPyenvEnvironments(): AsyncIterableIterator<BasicEnvInfo> {
             }
         }
     }
+    traceVerbose('Finished searching for pyenv environments');
 }
 
 export class PyenvLocator extends FSWatchingLocator {

src/client/pythonEnvironments/base/locators/lowLevel/windowsKnownPathsLocator.ts

@@ -16,6 +16,7 @@ import { Locators } from '../../locators';
 import { getEnvs } from '../../locatorUtils';
 import { PythonEnvsChangedEvent } from '../../watcher';
 import { DirFilesLocator } from './filesLocator';
+import { traceVerbose } from '../../../../logging';
 
 /**
  * A locator for Windows locators found under the $PATH env var.
@@ -93,6 +94,7 @@ function getDirFilesLocator(
     // take a naive approach.
     async function* iterEnvs(query: PythonLocatorQuery): IPythonEnvsIterator<BasicEnvInfo> {
         yield* await getEnvs(locator.iterEnvs(query));
+        traceVerbose('Finished searching for windows path interpreters');
     }
     return {
         providerId: locator.providerId,

src/client/pythonEnvironments/base/locators/lowLevel/windowsRegistryLocator.ts

@@ -5,7 +5,7 @@
 import { PythonEnvKind, PythonEnvSource } from '../../info';
 import { BasicEnvInfo, IPythonEnvsIterator, Locator } from '../../locator';
 import { getRegistryInterpreters } from '../../../common/windowsUtils';
-import { traceError } from '../../../../logging';
+import { traceError, traceVerbose } from '../../../../logging';
 import { isMicrosoftStoreDir } from '../../../common/environmentManagers/microsoftStoreEnv';
 
 export class WindowsRegistryLocator extends Locator<BasicEnvInfo> {
@@ -33,6 +33,7 @@ export class WindowsRegistryLocator extends Locator<BasicEnvInfo> {
                     traceError(`Failed to process environment: ${interpreter}`, ex);
                 }
             }
+            traceVerbose('Finished searching for windows registry interpreters');
         };
         return iterator();
     }

src/client/pythonEnvironments/base/locators/lowLevel/workspaceVirtualEnvLocator.ts

@@ -97,6 +97,7 @@ export class WorkspaceVirtualEnvironmentLocator extends FSWatchingLocator {
             });
 
             yield* iterable(chain(envGenerators));
+            traceVerbose(`Finished searching for workspace virtual envs`);
         }
 
         return iterator(this.root);

src/client/pythonEnvironments/base/locators/lowLevel/macDefaultLocator.ts → src/client/pythonEnvironments/common/environmentManagers/macDefault.ts

@@ -1,9 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-import { getOSType, OSType } from '../../../../common/utils/platform';
-
-// TODO: Add tests for 'isMacDefaultPythonPath' when working on the locator
+import { getOSType, OSType } from '../../../common/utils/platform';
 
 /**
  * Decide if the given Python executable looks like the MacOS default Python.

src/client/pythonEnvironments/index.ts

@@ -36,7 +36,7 @@ import {
 import { EnvsCollectionService } from './base/locators/composite/envsCollectionService';
 import { IDisposable } from '../common/types';
 import { traceError } from '../logging';
-import { ActiveStateLocator } from './base/locators/lowLevel/activestateLocator';
+import { ActiveStateLocator } from './base/locators/lowLevel/activeStateLocator';
 
 /**
  * Set up the Python environments component (during extension activation).'

src/client/pythonEnvironments/legacyIOC.ts

@@ -10,7 +10,7 @@ import { IComponentAdapter, ICondaService, PythonEnvironmentsChangedEvent } from
 import { IServiceManager } from '../ioc/types';
 import { PythonEnvInfo, PythonEnvKind, PythonEnvSource } from './base/info';
 import { IDiscoveryAPI, PythonLocatorQuery, TriggerRefreshOptions } from './base/locator';
-import { isMacDefaultPythonPath } from './base/locators/lowLevel/macDefaultLocator';
+import { isMacDefaultPythonPath } from './common/environmentManagers/macDefault';
 import { isParentPath } from './common/externalDependencies';
 import { EnvironmentType, PythonEnvironment } from './info';
 import { toSemverLikeVersion } from './base/info/pythonVersion';

src/test/pythonEnvironments/base/locators/lowLevel/activestateLocator.unit.test.ts

@@ -7,7 +7,7 @@ import * as fsapi from 'fs-extra';
 import { PythonEnvKind } from '../../../../../client/pythonEnvironments/base/info';
 import * as externalDependencies from '../../../../../client/pythonEnvironments/common/externalDependencies';
 import { getEnvs } from '../../../../../client/pythonEnvironments/base/locatorUtils';
-import { ActiveStateLocator } from '../../../../../client/pythonEnvironments/base/locators/lowLevel/activestateLocator';
+import { ActiveStateLocator } from '../../../../../client/pythonEnvironments/base/locators/lowLevel/activeStateLocator';
 import { TEST_LAYOUT_ROOT } from '../../../common/commonTestConstants';
 import { assertBasicEnvsEqual } from '../envTestUtils';
 import { ExecutionResult } from '../../../../../client/common/process/types';

src/test/pythonEnvironments/base/locators/lowLevel/macDefaultLocator.unit.test.ts

@@ -4,7 +4,7 @@
 import * as assert from 'assert';
 import * as sinon from 'sinon';
 import * as osUtils from '../../../../../client/common/utils/platform';
-import { isMacDefaultPythonPath } from '../../../../../client/pythonEnvironments/base/locators/lowLevel/macDefaultLocator';
+import { isMacDefaultPythonPath } from '../../../../../client/pythonEnvironments/common/environmentManagers/macDefault';
 
 suite('isMacDefaultPythonPath', () => {
     let getOSTypeStub: sinon.SinonStub;

src/test/pythonEnvironments/base/locators/lowLevel/posixKnownPathsLocator.unit.test.ts

@@ -14,7 +14,7 @@ import { PosixKnownPathsLocator } from '../../../../../client/pythonEnvironments
 import { createBasicEnv } from '../../common';
 import { TEST_LAYOUT_ROOT } from '../../../common/commonTestConstants';
 import { assertBasicEnvsEqual } from '../envTestUtils';
-import { isMacDefaultPythonPath } from '../../../../../client/pythonEnvironments/base/locators/lowLevel/macDefaultLocator';
+import { isMacDefaultPythonPath } from '../../../../../client/pythonEnvironments/common/environmentManagers/macDefault';
 
 suite('Posix Known Path Locator', () => {
     let getPathEnvVar: sinon.SinonStub;